The mass transfer co-efficient for a solid sphere of radius ‘a’ dissolving in a large volume of quiescent liquid, in which „D’ is the diffusivity of solute, is _____________________?

Related Mcqs:

If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be _______________ percent?

A. 100 B. > 100 C. < 100 D. None of these...

With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux__________________?

A. Increases B. Decreases C. Remain same D. May increase or decrease; depends on system...

Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a____________________?

A. Higher dew point B. Higher absolute (specific) humidity C. Higher relative humidity D. Higher wet bulb temperature...

Rotary dryers cannot handle _______________ materials ?

A. Free flowing B. Dry C. Sticky D. Granular...

_____________ is used as an ‘entrainer’ for the separation of acetic acid-water mixture by distillation?

A. Furfural B. Benzol C. Butyl acetate D. Hexane...